package edu.pku.se.chocolate.UI.Adapter;

import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.LinearGradient;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.PorterDuff.Mode;
import android.graphics.PorterDuffXfermode;
import android.graphics.Shader.TileMode;
import android.graphics.Typeface;

public class BitmapUtil {
	public static Bitmap createTxtImage(String txt, int txtSize) {
		int count = 0;
		int count1 = 0;
		for(int i=0;i<txt.length();i++) {
			char temp = txt.charAt(i);
			//&&((temp<'A')||(temp>'Z'))
			if((temp<128)&&(temp<'0'||temp>'9')) {
				count++;
			}
			else if(temp>='0'&&temp<='9')
				count1++;
		}
		count=(count)/3;
		count1=count1/2;
		Bitmap mbmpTest = Bitmap.createBitmap((txt.length()-count-count1) * txtSize + 4,txtSize + 4, Config.ARGB_8888);
		Canvas canvasTemp = new Canvas(mbmpTest);
		Paint p = new Paint();
		p.setAntiAlias(true);
		p.setTypeface(Typeface.MONOSPACE);
		p.setColor(Color.WHITE);
		p.setTextSize(txtSize);
		canvasTemp.drawText(txt, 2, txtSize - 2, p);
		return mbmpTest;
	}
	
	public static Bitmap createReflectedImage(Bitmap originalImage) {
		// The gap we want between the reflection and the original image
		final int reflectionGap = 0;
		int width = originalImage.getWidth();
		int height = originalImage.getHeight();
		// This will not scale but will flip on the Y axis
		Matrix matrix = new Matrix();
		matrix.preScale(1, -1);
		// Create a Bitmap with the flip matrix applied to it.
		// We only want the bottom half of the image
		Bitmap reflectionImage = Bitmap.createBitmap(originalImage, 0,height / 2, width, height / 2, matrix, false);
		// Create a new bitmap with same width but taller to fit reflection
		Bitmap bitmapWithReflection = Bitmap.createBitmap(width,(height + height / 2), Config.ARGB_8888);
		// Create a new Canvas with the bitmap that's big enough for
		// the image plus gap plus reflection
		Canvas canvas = new Canvas(bitmapWithReflection);
		// Draw in the original image
		canvas.drawBitmap(originalImage, 0, 0, null);
		// Draw in the gap
		Paint defaultPaint = new Paint();
		canvas.drawRect(0, height, width, height + reflectionGap, defaultPaint);
		// Draw in the reflection
		canvas.drawBitmap(reflectionImage, 0, height + reflectionGap, null);
		// Create a shader that is a linear gradient that covers the reflection
		Paint paint = new Paint();
		LinearGradient shader = new LinearGradient(0,originalImage.getHeight(), 0, bitmapWithReflection.getHeight() + reflectionGap, 0x70ffffff, 0x00ffffff, TileMode.CLAMP);
		// Set the paint to use this shader (linear gradient)
		paint.setShader(shader);
		// Set the Transfer mode to be porter duff and destination in
		paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));
		// Draw a rectangle using the paint with our linear gradient
		canvas.drawRect(0, height, width, bitmapWithReflection.getHeight() + reflectionGap, paint);
		return bitmapWithReflection;
	}
}